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Goodwill and Identifiable Intangibles (Acquired Identifiable Intangibles) (Details) - USD ($) $ in Millions |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 01, 2019 | Jan. 31, 2019 | Jul. 02, 2018 | Dec. 31, 2020 | Dec. 17, 2020
Cumberland Asset Acquisition |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  | $ 3.2 |  |  |
Cumberland Asset Acquisition | Trade names |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  | $ 0.8 |  |  |
Intangible assets, useful life |  | 10 years |  |  |
Cumberland Asset Acquisition | Customer relationships |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  | $ 2.4 |  |  |
Intangible assets, useful life |  | 7 years |  |  |
Foroni Acquisition |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired | $ 11.1 |  |  |  |
Foroni Acquisition | Trade names |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired | $ 11.1 |  |  |  |
Intangible assets, useful life | 23 years |  |  |  |
GOBA Acquisition |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  | $ 10.3 |  |
GOBA Acquisition | Trade names |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  |  | $ 3.8 |  |
Intangible assets, useful life |  |  | 15 years |  |
GOBA Acquisition | Customer relationships |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  |  | $ 6.5 |  |
Intangible assets, useful life |  |  | 10 years |  |
PowerA |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  |  |  | $ 239.7
PowerA | Trade names |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  |  |  | 21.6
Intangible assets, useful life |  |  |  | 15 years |
PowerA | Customer relationships |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  |  |  | 127.6
Intangible assets, useful life |  |  |  | 15 years |
PowerA | Vendor Relationships |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  |  |  | 87.7
Intangible assets, useful life |  |  |  | 15 years |
PowerA | Developed Technology Rights |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable intangibles acquired |  |  |  |  | $ 2.8
Intangible assets, useful life |  |  |  | 5 years |

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